 <template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区 -->

      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVsible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"> </el-table-column>
        <el-table-column label="姓名" prop="username"> </el-table-column>
        <el-table-column label="邮箱" prop="email"> </el-table-column>
        <el-table-column label="电话" prop="mobile"> </el-table-column>
        <el-table-column label="角色" prop="role_name"> </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            >
            </el-button>
            <!-- 删除按钮 -->
            <el-button
              type="warning"
              size="mini"
              icon="el-icon-delete"
              @click="removeUserById(scope.row.id)"
            >
            </el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="danger"
                size="mini"
                icon="el-icon-setting"
                @click="setRole(scope.row)"
              >
              </el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户弹出框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVsible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile" maxlength="11"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVsible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose"
    >
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRloeDialogColsed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：<el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      var regEmail =
        /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
      if (regEmail.test(value)) {
        //合法邮箱
        return cb()
      }
      return cb(new Error('请输入合法的邮箱'))
    }
    //手机号的规则
    var checkMobile = (rule, value, cb) => {
      var regMobile =
        /^(?:(?:\+|00)86)?1(?:(?:3[\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\d])|(?:9[189]))\d{8}$/
      if (regMobile.test(value)) {
        //合法手机号
        return cb()
      }
      return cb(new Error('请输入合法的手机号'))
    }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '', //查询参数
        pagenum: 1, //当前页数
        pagesize: 2, //当前每页显示多少条数据
      },
      userList: [], //用户列表
      total: 0, //总共多少条数据
      addDialogVsible: false, //控制添加用户对话框的显示隐藏
      //添加用户的表单数据
      addForm: {
        username: '', //用户名
        password: '', //密码
        email: '', //邮箱
        mobile: '', //手机
      },
      //添加表单的规则验证
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur',
          },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3～10个字符之间',
            trigger: 'blur',
          },
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur',
          },
          {
            min: 6,
            max: 15,
            message: '用户名长度在6～15个字符之间',
            trigger: 'blur',
          },
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur',
          },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            trigger: 'blur',
          },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      editDialogVisible: false, //控制修改用户对话框的显示与隐藏
      //查询到的用户信息表单
      editForm: {},
      //分配角色对话框的展示
      setRoleDialogVisible: false,
      //需要分配角色的用户信息
      userInfo: {},
      //所有角色的列表
      rolesList: [],
      //选中分配的角色
      selectRoleId: '',
    }
  },
  methods: {
    //获取用户信息
    async getUserList() {
      const { data: res } = await this.$axios.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      } else {
        if (res.data.users.length !== 0) {
          this.userList = res.data.users
          this.total = res.data.total
        } else {
          this.queryInfo.pagenum -= 1
          this.getUserList()
        }
      }
    },
    //监听apgesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch开关状态的改变
    async userStateChanged(userinfo) {
      const { data: res } = await this.$axios.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return this.$message.error('用户信息输入有误')
        //可以发起添加用户的请求
        const { data: res } = await this.$axios.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.addDialogVsible = false
        this.getUserList()
      })
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$axios.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //监听修改用户对话框的关闭事件
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    //修改用户并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return this.$message.error('用户信息表单输入有误')
        //可以发起修改用户的请求
        const { data: res } = await this.$axios.put(
          'users/' + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户信息成功')
      })
    },
    //删除用户信息
    removeUserById(id) {
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      })
        .then(async () => {
          const { data: res } = await this.$axios.delete('users/' + id)
          if (res.meta.status !== 200) {
            return this.$message.error('删除用户失败')
          }
          this.getUserList()
          this.$message({
            type: 'success',
            message: '删除成功!',
          })
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除',
          })
        })
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      //在展示对话框之前获取所有角色的列表
      const { data: res } = await this.$axios.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$axios.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectRoleId }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    //监听分配角色对话框的关闭事件
    setRloeDialogColsed() {
      this.selectRoleId = ''
      this.userInfo = ''
    },
  },
  created() {
    this.getUserList()
  },
}
</script>
<style lang="less" scoped>
</style>